Storage battery



P. D. IVEY AND A. J. SALISBURY.

STORAGE BATTERY.

APPLICATIQN FILED FEB. 14. 1912. 1,340,269.

Patented 18,1920.

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UNITED STATES PATENT OFFICE.

PERCY DOUGLAS IVEY, OF GUELPH, AND ALFRED JAMES SALISBURY, OF TORONTO, ONTARIO, CANADA.

STORAGE BATTERY.

Application filed February 14, 1919.

To all whom it may concern.-

Be it known that we, PERCY DOUGLAS IvnY, of the cit of Guelph, in the county of Wellington, in the, Province of Ontario, Canada, and ALFRED JAMES Samsunnr, ot the city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented certain new and useful lniprorements in Storage Batteries, of which the following is the specification.

Our invention relates to improreiuents in storage batteries and theobjtct ol' the in vention is to devise menus in a storage battery not liable to get out of order or fail to work, which will always clearly indicate the density of the electrolyte during the use of the battery so that the owner will have instantaneously and without close inspection a definite indication as to the condition of the electrolyte and when the cell is in need of recharging and it consists essentially of the arrangement and construction of parts as hereinaft r more particularly explained.

Figure l, is a vertical sectional View showing an alternativeconstruction.

Fig. 9., is a plan view of the construction shown in Fig. l.

in the drawings like letters of rel'crenco indicate corresponding parts in the various figures.

7 indicates the wall of the battery which is divided by partitions 8 and 9 into cells 10, 11 and 12. Spaced from the wall i of the cell and extending between the. dividing walls 3 and 9 are cross walls 13, which ex.- tend down at their lower ends in proximity to the bottom of the cell but do not touch such bottom, leaving an interveningopening for the passage of the fluid contained in the cell.

The space between the cross walls 13 and the wall 7 of the battery is divided by rertical strips 15 and 16 extending between the cross wall 13 and the wall of the battery thereby forming; chambers 17, 18 and 19 in each cell, each ehamber filling with fluid to the same level as the fluid in the battery.

Specification of Letters Patent.

Patented May 18, 1920.

Serial No. 277,036.

Each space 17, 18 and 19 is provided with a buoyant element 20, these buoyant elements varying in specific gravity so as to ties of the electrolvtc are readily distiir.

guishablel In former constructions adopted the beads have been always located in the same verteeal passageway or chamber. the effect being in many cases that the beads indicatingdiil'erent densities would sometimes jam in the passage-way. and, therefore the reading frequently could not he depended upon. in a separate passa gke-ivay this diiliculty is entirely overcome, and a correct reading is always assured.

Anothe advantage, which we obtain-1n our constructkm resides in the fact. that should one of. the beads be defective in constrnction such as would cause it to leak or crack during nse'it would not render in operatire the otherbeads. This defect is likewise obviated by the cmistruction. which we have heretofore described.

hat we claim as our invention is:

In a. battery cell having transparent walls a supplemental wall located in proximity to one of the walls and provided with partitions extending between it and the wall whereby separate chambers are provided, the said chambers communicating with the main cell. whereby the electrolyte is common to all. each chamber being provided. lIllEllB electrolyte. whereby the reading and free with a single bead or buoyant element movement of each head is facilitated.

PERCY DOUGLAS IVEY. ALFRED JAMES SALISBURY. \Vitnesses:

B. Born, M. EGAN.

By haying ahead for each density 

